Obsidian Dragon
Passcode: 90464188 Card Database: 7425
Rock 
DARK 
Level 4 Effect ATK800 DEF2100 Negate any Spell/Trap effects that target exactly 1 DARK monster you control (and no other cards), and if you do, destroy them.
TCG: Unlimited
OCG: Unlimited
MD: Unlimited
Genesys: 0